The Mutiverse and Everyday Life

A brief development of the Multiverse idea is given, including its implication in connection with the Anthropic Principle. Emphasis is put upon its quantum physical aspect. Considerations include the collapse of wave functions, complementarity, the superposition of states and decoherence. The role of relativity is touched upon in the context of space-time and world lines. The interplay between determinism and stochastics is discussed and a tool kit for simulation is proposed, including entity relationships. The importance of operators, common states and observables is outlined. Within this simulation methodology an everyday example and a historic example for a transition from Multiverse to a specific universe are presented.